Experiment with websockets, node.js and redis.


Dependencies:
* node.js
* redis 
* node-redis: https://github.com/mranney/node_redis 
  npm install socket.io 
* Socket.IO-node https://github.com/LearnBoost/Socket.IO-node
  npm install socket.io 

To run:
1) start the redis-server in a terminal window:
   $ redis-server 
2) run the server.js script with node.js in another terminal window:
   $ node server.js
3) open the chat.html file in your browser.